Answer
$-23$
Work Step by Step
RECALL:
The order of operations follow the PEMDAS rule:
First Priority:
P - Parentheses or grouping symbols
Second Priority:
E - Exponents
Third Priority:
M/D - Multiplication or Division, whichever comes first from the left
Fourth Priority:
A/S - Addition or Subtraction, whichever comes first from the left
Use the PEMDAS rule to obtain:
$=2 \cdot [8-3(6)]-3
\\=2 \cdot [8-18] - 3
\\=2 \cdot [-10] - 3
\\=-20 - 3
\\=-23$
